Wittman Buttercup, on wheel skis. The owner uses it to fly north and go ice fishing. Our resident aerodynamicist was intrigued by its unusual wingtips.
In Case You Missed it
Wind Tunnel
Airplanes are surprisingly flexible, and changes in their shape can affect aerodynamic characteristics. Barnaby Wainfan explains how the two are coupled.
Free Flight
When testing a new avionics component in your homebuilt, you must be prepared to deal with any consequences that may develop.
Eliminating Egg-Shaped Holes
Quarter-inch pilot bits in hole saws have a tendency to enlarge the pilot hole...
